Waste Management and Pollution

Detritus refers to waste material, debris, or organic matter that has broken down into fragments. It commonly describes accumulated rubbish, organic debris in ecosystems, or general waste material.

Mercury is a toxic heavy metal found in fluorescent bulbs, tube lights, and batteries that can vaporize when broken and be absorbed through inhalation or skin contact. It particularly damages the kidneys and nervous system, including the brain. Copper, cadmium, and arsenic are also toxic but mercury is specifically associated with these lighting products.

Vegetable peels and other kitchen waste are important components of organic waste, which is biodegradable and can be composted. Organic waste includes food scraps, garden waste, and other natural materials. Plastic bags, glass, and metal fall under recyclable waste, not organic waste.

Old batteries contain hazardous chemicals and heavy metals that can leach into soil and groundwater if disposed of in regular trash. They must be disposed of in special recycling containers designed to safely handle these materials and prevent environmental contamination. Option B is correct.

Most waste is transported to landfills where it is buried or to incineration plants where it is burned. Options A and B are scientifically impossible - waste cannot vanish or be transported to Mars.

Recycling centers properly separate materials for reuse, reducing waste and conserving resources. Options B and C are irresponsible - dumping waste creates pollution and environmental damage regardless of location or smell.

Recycling involves reusing materials or converting waste into new materials. 'Destroying' means to completely break down or ruin something, which is the opposite of recycling. You cannot recycle something that has been destroyed.

Despite recycling programs and waste-to-energy incineration, the majority of household trash worldwide goes to landfills. Landfills remain the primary disposal method for municipal solid waste in most countries due to their low cost and simplicity.

Plastic bags are environmental hazards - they cause litter, clog drains, choke landfills, and persist in the environment for centuries without degrading. The question advocates avoiding plastic bags for these reasons. Cloth and paper bags are eco-friendly alternatives.

In bear country, all waste must be packed out - burning and containing ashes is the only acceptable method because it prevents bears from associating campsites with food. Burying (A) doesn't stop bears from digging it up. Carrying unburned garbage (B) risks spills and odors. Leaving it (D) is unethical and dangerous as it habituates bears to human food sources.

According to environmental studies, approximately 86% of plastic water bottles are not recycled and end up in landfills or as litter. This highlights the environmental impact of bottled water consumption.

Biogas digestion, also called anaerobic digestion, is a process where microorganisms break down biodegradable material (like food waste, agricultural waste, or manure) in the absence of oxygen. This produces methane-rich biogas that can be burned for electricity or heat. While cow methane is captured (not from flatulence directly but from manure management), option C correctly describes the general process.

TCS follows responsible e-waste disposal by handing over e-waste only to authorized recyclers certified by pollution control boards. Municipal collectors and garbage dumpyards are not approved for e-waste, and dismantling at site is not the company's practice.

The incorrect statement is that TCS does not generate any hazardous waste. Like any IT company, TCS does generate some hazardous waste (like e-waste, batteries, printer cartridges) which is properly managed through authorized recyclers. The other statements about HSE systems, green energy use, and public environmental reporting are all correct.

TCS policy requires e-waste to be handed over only to authorized recyclers who comply with environmental regulations. This ensures hazardous materials are properly handled and recycled. Municipal waste collection, garbage dumps, or local dismantling are not authorized e-waste disposal methods.